CN113473712A - Circuit board pressing method - Google Patents
Circuit board pressing method Download PDFInfo
- Publication number
- CN113473712A CN113473712A CN202110588005.0A CN202110588005A CN113473712A CN 113473712 A CN113473712 A CN 113473712A CN 202110588005 A CN202110588005 A CN 202110588005A CN 113473712 A CN113473712 A CN 113473712A
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- Prior art keywords
- circuit board
- plate
- pressing
- air
- machine body
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/001—Joining in special atmospheres
- B29C66/0012—Joining in special atmospheres characterised by the type of environment
- B29C66/0014—Gaseous environments
- B29C66/00145—Vacuum, e.g. partial vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/824—Actuating mechanisms
- B29C66/8242—Pneumatic or hydraulic drives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
- B32B37/1009—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure using vacuum and fluid pressure
Abstract
The invention relates to the technical field of circuit boards, in particular to a circuit board pressing method which comprises a machine body, wherein a cavity for pressing a circuit board up and down is arranged in the machine body, a pressing mechanism for pressing is arranged in the cavity, a sealing mechanism for sealing the cavity is arranged at the front part of the machine body, a base is fixedly connected to the bottom of the machine body, and a limiting auxiliary mechanism for assisting in positioning the circuit board is arranged in the machine body. This circuit board pressfitting method, the mode of inflation pressfitting through the air pocket strip that sets up, can be so that whole circuit board pressfitting in-process more comprehensive, reduce the condition that warp the limit appears, very convenient, make the quality of the circuit board of pressfitting completion can improve greatly, set up rolling bearing in workstation both sides simultaneously, make the circuit board play spacingly in the in-process both sides of propelling movement, and supplementary gliding effect, make the promotion to the circuit board more smooth and easy.
Description
Technical Field
The invention relates to the technical field of circuit boards, in particular to a circuit board pressing method.
Background
A PCB board, referred to as a printed circuit board or PCB, is a provider of electrical connections for electronic components. Generally, printed circuit boards: the method is characterized in that a layer/two layers of copper foils (conducting layers) are covered on a non-conducting substrate, namely a single-sided/double-sided circuit board, then the designed lines needed to be reserved for circuit connection are printed on the copper foils (corrosion-resistant media) by adopting a printing method, the copper foils without protective coatings are corroded by being immersed in corrosive liquid, corrosive residual liquid is washed away, positioning and punching are carried out, soldering flux is coated, and the like, so that the method is completed. The PCB functions as if crops need to grow in soil: firstly, the copper foil lines are used for providing electrical connection for electronic elements; and secondly, physical support is provided for the electronic components. The main advantages of using a PCB board are that wiring and assembly errors are greatly reduced, and the level of automation and labor productivity are improved.
The PCB board layer press in the present stage has feeding difficulty, and what many presses adopted is the mode of cylinder type push-and-pull, it is inhomogeneous to have the stress point, lead to the pressfitting to have the deformation, stick up the limit, the condition of unevenness, the push-and-pull of cylinder type is big at the atress simultaneously, can reduce the life of hydro-cylinder, when operating personnel carries out the pay-off, receive the weight of circuit board simultaneously, propelling movement in-process intensity of labour is big, the pay-off position also probably has certain skew, reduce the quality and the effect of pressfitting. In view of this, we propose a circuit board laminating method.
Disclosure of Invention
The present invention is directed to a circuit board laminating method to solve the problems of the related art.
In order to achieve the purpose, the invention provides the following technical scheme:
a circuit board pressing method comprises a machine body, wherein a cavity for pressing a circuit board up and down is arranged in the machine body, a pressing mechanism for pressing is arranged in the cavity, a sealing mechanism for sealing the cavity is arranged at the front part of the machine body, a base is fixedly connected to the bottom of the machine body, a limiting auxiliary mechanism for assisting in positioning the circuit board is arranged in the machine body, and a pressure release valve and an inflation valve are fixedly arranged in the machine body;
a circuit board laminating method comprises the following steps:
the method comprises the following steps: feeding, namely pushing the stacked circuit boards from the position of the feeding port into a pressing workbench by an operator;
step two: sealing, then extending the oil cylinder, controlling the sealing door to ascend and move, sliding the sealing door in the sliding seat through the sliding bearings on the two sides when the sealing door moves upwards, and injecting certain air pressure into the connecting air nozzle when the sealing door completely covers the feeding port to inflate and expand the air bag II, wherein the inflated air bag II can provide certain thrust to the pressing plate to press the sealing door tightly, so that sealing is guaranteed;
step three: pressing, namely slowly injecting certain air pressure into the inflation valve, wherein the air bag strip can provide certain thrust to the gravity plate to move downwards after being expanded by the air pressure, and the gravity plate moves downwards to drive the whole heating plate to move downwards to perform pressing operation on the circuit board;
step four: the heating plate is electrified and heated in the process of moving downwards, so that the heating rod is electrified and heated to perform auxiliary pressing operation on the circuit board, the copper foil stacked in the circuit board is electrified, and the copper foil is slowly melted after being conducted and heated and is fully fused with each layer of circuit board;
step five: maintaining pressure, namely maintaining the pressure of the circuit board after the pressing operation is finished for a certain time to reduce deformation, and simultaneously powering off the heating rod in the pressure maintaining process;
step six: lifting, namely after a certain pressure maintaining time, finishing the pressing of the circuit board, discharging the air pressure of the air bag strip from the positions of the four pressure release valves, pulling the connecting piece on the gravity plate back to the original position by using the four cylinders, and jacking the pressed circuit board by the air bag strip three-way inflation rising;
step seven: and cooling, releasing the pressure of the air bag strips, shrinking the oil cylinder, moving the sealing door downwards, opening the material inlet, and taking out the circuit board after the pressing by an operator to be placed outdoors for natural cooling.
Preferably, the pressing mechanism comprises an air cylinder, an output end of the air cylinder is fixedly connected with a pulling plate, the pulling plate is connected with a gravity plate through a bolt, a lower fixing plate is connected to the surface of the gravity plate in a sliding mode, an upper fixing plate is connected to the surface of the lower fixing plate through a bolt, the upper fixing plate is fixedly connected to the machine body through a bolt, and an air bag strip I is fixedly connected between the upper fixing plate and the lower fixing plate.
Preferably, the bottom of the pulling plate is fixedly connected with a heat insulation plate, the bottom of the heat insulation plate is fixedly connected with a heating plate, and a plurality of heating rods are arranged inside the heating plate.
Preferably, the air bag strip is located in a cavity formed between the lower fixing plate and the machine body, the number of the air cylinders is four, the four air cylinders are distributed on four corners of the pulling plate in an array mode, and the air cylinders are fixed in the machine body.
Preferably, the sealing mechanism comprises an oil cylinder, the output shaft surface of the oil cylinder is fixedly connected with a connecting sheet, the output shaft of the oil cylinder is fixedly connected with a connector, the surface of the connector is connected with a sealing door in a sliding manner, and the surface of the oil cylinder is connected to the machine body through a bolt.
Preferably, the sealing mechanism comprises an oil cylinder, the output shaft surface of the oil cylinder is fixedly connected with a connecting sheet, the output shaft of the oil cylinder is fixedly connected with a connector, the surface of the connector is connected with a sealing door in a sliding manner, and the surface of the oil cylinder is connected to the machine body through a bolt.
Preferably, there is the slide through bolted connection on the organism, the surperficial sliding connection of sealing door is in the inside of slide, the inside sliding connection of slide has the clamp plate, the below of clamp plate is provided with air pocket strip two, bolted connection is passed through in the inside of slide on the surface of air pocket strip two, fixedly connected with connects the air cock on the slide, it communicates with each other with air pocket strip two to connect the air cock.
Preferably, the limiting auxiliary mechanism comprises a connecting block, the surface of the connecting block is connected with an upper supporting plate and a lower supporting plate through bolts, the connecting block is fixedly connected with an inflating nozzle, an air bag strip III is arranged in a cavity formed by the upper supporting plate and the lower supporting plate, the end part of the air bag strip III is fixedly connected onto the lower supporting plate through bolts, and the upper supporting plate is connected with a sliding connecting plate in a sliding mode.
Preferably, the sliding connecting plate is rotatably connected with a plurality of pushing bearings and is located above the third air bag strip, the number of the sliding connecting plates is two, and the two sliding connecting plates are symmetrically distributed by taking the center of the machine body as a symmetry axis.
Preferably, the inside fixedly connected with support of organism, fixedly connected with rolling bearing on the support, the fixed surface of organism installs the observation window.
Compared with the prior art, the invention has the beneficial effects that:
1. this circuit board pressfitting method, the mode of inflation pressfitting through the air pocket strip that sets up, can make whole circuit board in process of production, the stress point on its surface is whole plane, make the in-process of pressfitting more comprehensive, reduce the condition that warp the limit appears warping, it is very convenient, make the quality of the circuit board of pressfitting completion can improve greatly, and heat the clamp plate through multiunit heating rod in the inside of clamp plate simultaneously, conduct the heat to the circuit board again, when making the circuit board pass through the copper foil heating, the heating rod is heating its assistance-heating, make pressfitting in-process heat conduction faster, the pressfitting effect is better, rolling bearing has been set up in workstation both sides simultaneously, it is spacing to make the circuit board play in the in-process both sides of propelling movement, and supplementary gliding effect, make the promotion to the circuit board more smooth and easy.
2. This circuit board pressfitting method, through the spacing complementary unit who sets up for the circuit board is when getting into from the pan feeding mouth, can enter into on the propelling movement bearing on the slip even board, through propelling movement bearing pivoted effect, makes the circuit board more convenient at the process of propelling movement, and is swift, simultaneously more laborsaving, and through the inflation and deflation of air pocket strip three, can carry out putting into of position to the circuit board, avoids the manual work to go again to move and look for the position, the condition that wastes time and energy.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a portion of the body of the present invention;
FIG. 3 is a schematic view of a pressing mechanism according to the present invention;
FIG. 4 is a schematic view of a sealing mechanism of the present invention;
FIG. 5 is a schematic cross-sectional view of a slider according to the present invention;
fig. 6 is a schematic view of a limit assist mechanism in the present invention.
In the figure: 1. a body; 2. a cavity; 3. a pressing mechanism; 301. a cylinder; 302. fixing the plate; 303. a lower fixing plate; 304. a gravity plate; 305. pulling a plate; 306. heating plates; 307. a heat insulation plate; 308. an air bag strip I; 309. a heating rod; 4. a sealing mechanism; 41. an oil cylinder; 42. a sealing door; 43. a connector; 44. connecting sheets; 45. a sliding bearing; 46. a slide base; 47. pressing a plate; 48. a second air bag strip; 49. connecting an air faucet; 5. a base; 6. an observation window; 7. a pressure relief valve; 8. an inflation valve; 9. a limit auxiliary mechanism; 91. An upper support plate; 92. a lower support plate; 93. connecting blocks; 94. pushing the bearing; 95. an air bag strip III; 96. an air charging nozzle; 97. a sliding connecting plate; 10. a support; 11. and rotating the bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Example 1
A circuit board pressing method is disclosed, as shown in fig. 1-5, and comprises a machine body 1, a cavity 2 for pressing a circuit board up and down is arranged in the machine body 1, a pressing mechanism 3 for pressing is arranged in the cavity 2, a sealing mechanism 4 for sealing the cavity 2 is arranged at the front part of the machine body 1, a base 5 is fixedly connected with the bottom of the machine body 1, a limiting auxiliary mechanism 9 for auxiliary positioning of the circuit board is arranged in the machine body 1, and a pressure release valve 7 and an inflation valve 8 are fixedly arranged in the machine body 1;
a circuit board laminating method comprises the following steps:
the method comprises the following steps: feeding, namely pushing the stacked circuit boards from the position of the feeding port into a pressing workbench by an operator;
step two: sealing, then extending the oil cylinder 41, controlling the sealing door 42 to ascend and move, sliding the sealing door 42 in the sliding seat 46 through the sliding bearings 45 on the two sides when the sealing door 42 moves upwards, and injecting certain air pressure into the connecting air nozzle 49 when the sealing door 42 completely covers the feeding port to inflate and expand the air bag strip II 48, wherein the inflated air bag strip II 48 can provide certain thrust to the pressing plate 47, so that the pressing plate 47 compresses the sealing door 42 to ensure sealing;
step three: pressing, namely slowly injecting certain air pressure into the inflation valve 8, wherein the first air bag strip 308 can provide certain thrust to the gravity plate 304 to move downwards after being expanded by the air pressure, and the gravity plate 304 moves downwards to drive the whole heating plate 306 to move downwards to perform pressing operation on the circuit board;
step four: the heating plate 306 is electrified and heated in the process of moving downwards to perform auxiliary pressing operation on the circuit board, and meanwhile, copper foils stacked inside the circuit board are electrified, and the copper foils are slowly melted after being conducted and heated and are fully fused with each layer of circuit board;
step five: maintaining pressure, namely maintaining the pressure of the circuit board after the pressing operation is finished for a certain time to reduce deformation, and simultaneously powering off the heating rod 309 in the pressure maintaining process;
step six: lifting, after a certain pressure maintaining time, completing the pressing of the circuit board, discharging the air pressure of the air bag strip I308 from the positions of the four pressure release valves 7, pulling back the connecting piece on the gravity plate 304 to the original position by using the four air cylinders 301, inflating and rising the air bag strip III 95, and jacking the pressed circuit board;
step seven: cooling, after pressure maintaining, releasing the pressure of the second air bag strip 48, shrinking the oil cylinder 41, moving the sealing door 42 downwards, opening the material inlet, taking out the circuit board after pressing by an operator, placing the circuit board outdoors for natural cooling
In this embodiment, the pressing mechanism 3 includes an air cylinder 301, an output end of the air cylinder 301 is fixedly connected with a pulling plate 305, the pulling plate 305 is connected with a gravity plate 304 through a bolt, a surface of the gravity plate 304 is connected with a lower fixing plate 303 in a sliding manner, a surface of the lower fixing plate 303 is connected with an upper fixing plate 302 through a bolt, the upper fixing plate 302 is fixedly connected to the machine body 1 through a bolt, an air bag strip one 308 is fixedly connected between the upper fixing plate 302 and the lower fixing plate 303, the air bag strip one 308 will provide a certain thrust to move the gravity plate 304 downwards after being expanded by air pressure, the gravity plate 304 moves downwards to drive the whole heating plate 306 to move downwards to perform pressing operation on the circuit board, the circuit board is heated and pressed by the heating rod 309 inside the heating plate 306, pressing effect of the circuit board is optimized by pressing of the whole surface of the circuit board under stress, and warping is avoided, the edge warping and deformation are more stable.
Further, the bottom of the pulling plate 305 is fixedly connected with a heat insulation plate 307, the bottom of the heat insulation plate 307 is fixedly connected with a heating plate 306, a plurality of heating rods 309 are arranged inside the heating plate 306 and are acted by the heating rods 309 inside the heating plate 306, the circuit board is heated and pressed in an auxiliary mode, the circuit board is pressed down to be pressed in through the whole surface of stress, the pressing effect of the circuit board is enabled to be optimal, the heat insulation plate 306 can well conduct isolated transmission on the heat insulation plate 307, and heat transmission to other connecting pieces is avoided, and heat loss is caused.
Furthermore, the first air pocket strips 308 are located in a cavity formed between the lower fixing plate 303 and the machine body 1, the number of the cylinders 301 is four, the four cylinders 301 are distributed at four corners of the pulling plate 305 in an array manner, the cylinders 301 are fixed in the machine body 1, and the four cylinders 301 are not stressed in a pressing state, and only provide an upper pulling force to reset the gravity plate 304, so that the pressing force can be pressed only by the action of the first air pocket strips 308.
It is worth noting that the sealing mechanism 4 comprises an oil cylinder 41, a connecting sheet 44 is fixedly connected to the surface of an output shaft of the oil cylinder 41, a connecting head 43 is fixedly connected to the output shaft of the oil cylinder 41, a sealing door 42 is connected to the surface of the connecting head 43 in a sliding manner, the surface of the oil cylinder 41 is connected to the machine body 1 through a bolt, the oil cylinder 41 extends, the sealing door 42 is controlled to move upwards to seal a feeding port, the air bag strip II 48 is inflated and expanded, the expanded air bag strip II 48 can provide certain thrust to the pressing plate 47, the pressing plate 47 is used for pressing the sealing door 42 tightly, the sealing effect is ensured, the air leakage is avoided, the internal heat is omitted, and the poor pressing quality is caused.
In addition, sliding bearings 45 are fixedly connected to both sides of the sealing door 42, and slide in the sliding base 46 through the sliding bearings 45 on both sides, so that friction force can be well reduced, and the extension of the oil cylinder 41 is smoother.
In addition, a sliding seat 46 is connected to the machine body 1 through a bolt, the surface of the sealing door 42 is connected to the inside of the sliding seat 46 in a sliding mode, a pressing plate 47 is connected to the inside of the sliding seat 46 in a sliding mode, a second air bag strip 48 is arranged below the pressing plate 47, the surface of the second air bag strip 48 is connected to the inside of the sliding seat 46 through a bolt, a connecting air nozzle 49 is fixedly connected to the sliding seat 46, and the connecting air nozzle 49 is communicated with the second air bag strip 48.
Example 2
As shown in fig. 6, the limiting auxiliary mechanism 9 includes a connecting block 93, the surface of the connecting block 93 is connected with an upper supporting plate 91 and a lower supporting plate 92 through bolts, the connecting block 93 is fixedly connected with an inflating nozzle 96, a cavity formed by the upper supporting plate 91 and the lower supporting plate 92 is internally provided with a third air bag strip 95, the end part of the third air bag strip 95 is fixedly connected with the lower supporting plate 92 through bolts, the upper supporting plate 91 is slidably connected with a sliding connecting plate 97, and the limiting auxiliary mechanism 9 is arranged, so that the circuit board is more convenient and rapid in the pushing process, and is more labor-saving, and the circuit board can be placed in position through inflation and deflation of the third air bag strip 95, thereby avoiding manual movement and position finding, and avoiding the situations of time and labor consumption.
In this embodiment, it is connected with a plurality of propelling movement bearing 94 to rotate on the even board 97 of slip, the even board 97 of slip is located the top of three 95 of air pocket strip, the even board 97 of slip quantity is provided with two, and two slip even boards 97 all use the center of organism 1 as symmetry axis symmetric distribution, make the circuit board when entering from the pan feeding mouth, can enter into the slip even on the board 97 on the propelling movement bearing 94, through propelling movement bearing 94 pivoted effect, further improvement the convenient degree of propelling movement of circuit board.
It is worth noting that the support 10 is fixedly connected inside the machine body 1, the rotating bearing 11 is fixedly connected on the support 10, the observation window 6 is fixedly installed on the surface of the machine body 1, the left and right positions of the circuit board are limited through the rotating bearings 11 arranged on the two sides, the pushing effect on the circuit board is achieved by utilizing the bearing industry, and an operator can watch the pressing process inside through the observation window 6 in real time, so that the emergency situation can be conveniently dealt with.
When the circuit board pressing method is used, firstly, the oil cylinder 41 in the sealing mechanism 4 is controlled to contract to move the sealing door 42 downwards to slide and open the material inlet of the equipment, then the stacked circuit boards are pushed into the machine from the material inlet by an operator, at the moment, the state of the air bag strip III 95 is an inflation lifting state, when the circuit boards enter the machine body 1, the circuit boards can slide on the sliding connecting plate 97 and pass through the plurality of pushing bearings 94, when the circuit boards slide from the pushing bearings 94, the friction force can be well reduced, the sliding process is more time-saving and labor-saving, the rotating bearings 11 on two sides can also play a certain limiting auxiliary sliding effect to ensure the left and right placing positions of the circuit boards, then the air bag strip III 95 is released, and under the action of the gravity of the circuit boards, the sliding connecting plate 97 moves downwards to slide, so that the whole circuit boards are placed on a working platform, then the oil cylinder 41 extends to control the sealing door 42 to move upwards to seal the feeding port, when the sealing door 42 moves upwards, the sealing door 42 slides in the sliding seat 46 through the sliding bearings 45 on the two sides, so that friction force can be well reduced, the oil cylinder 41 can extend more smoothly, when the sealing door 42 completely covers the feeding port, a certain air pressure is injected into the connecting air nozzle 49, the air bag strip II 48 is inflated and expanded in an air pressure injection mode, the expanded air bag strip II 48 can provide a certain thrust force to the pressing plate 47, so that the pressing plate 47 presses the sealing door 42 tightly to ensure sealing, the sealing door 42 is connected with the T-shaped sliding groove used by the connecting head 43, the sealing door 42 can slide back and forth, so that the sealing door 42 can be tightly pressed at the position of the feeding port in the pressing process of the pressing plate 47, and a sealing rubber strip is arranged at the position of the feeding port, the sealing is absolutely ensured, so that the internal circuit board operates in a stable sealed space, certain damage to operators due to hot gas leakage is avoided, after the sealing is finished, the vacuum pump is used for vacuumizing the cavity 2 to quickly conduct heat and melt on copper foils stacked on the circuit board, the heat conduction efficiency of the heating rod 309 is improved, the quality effect of the pressing is better, then certain air pressure is slowly injected into the position of the inflation valve 8 after the vacuum state, the air bag strip I308 can provide certain thrust to the gravity plate 304 to move downwards after being expanded by the air pressure, the gravity plate 304 moves downwards to drive the whole heating plate 306 to move downwards to perform pressing operation on the circuit board, the heating rod 309 inside the heating plate 306 is used for heating and pressing the circuit board in an auxiliary mode, and the pressing on the circuit board is performed through the pressing under the stress of the whole surface, the stitching effect of the circuit board is optimal, after a certain stitching time, stitching of the circuit board is completed, the air pressure of the air bag strip I308 is discharged from the positions of the four pressure release valves 7, the connecting pieces on the gravity plate 304 are pulled back to the original positions by the four air cylinders 301, and the four air cylinders 301 are not stressed in the stitching state, and only provide an upward pulling force to reset the gravity plate 304, so that the stitching force can be carried out only by the action of the air bag strip I308.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A circuit board pressing method comprises a machine body (1), and is characterized in that: a cavity (2) for pressing the circuit board up and down is arranged in the machine body (1), a pressing mechanism (3) for pressing is arranged in the cavity (2), a sealing mechanism (4) for sealing the cavity (2) is arranged at the front part of the machine body (1), a base (5) is fixedly connected to the bottom of the machine body (1), a limiting auxiliary mechanism (9) for assisting in positioning the circuit board is arranged in the machine body (1), and a pressure release valve (7) and an inflation valve (8) are fixedly arranged in the machine body (1);
a circuit board laminating method comprises the following steps:
the method comprises the following steps: feeding, namely pushing the stacked circuit boards from the position of the feeding port into a pressing workbench by an operator;
step two: sealing, then extending the oil cylinder (41), controlling the sealing door (42) to ascend and move, when the sealing door (42) moves upwards, sliding in the sliding seat (46) through the sliding bearings (45) on the two sides, and when the sealing door (42) completely covers the feeding port, injecting certain air pressure into the connecting air nozzle (49) to inflate and expand the air bag strip II (48), wherein the inflated air bag strip II (48) can provide certain thrust to the pressing plate (47), so that the pressing plate (47) compresses the sealing door (42) to ensure sealing;
step three: pressing, namely slowly injecting certain air pressure into the inflation valve (8), wherein the first air bag strip (308) can provide certain thrust to the gravity plate (304) to move downwards after being expanded by the air pressure, and the gravity plate (304) moves downwards to drive the whole heating plate (306) to move downwards to perform pressing operation on the circuit board;
step four: the heating plate (306) can perform power-on heating on the heating rod (309) in the downward moving process to perform auxiliary pressing operation on the circuit board, and meanwhile, the copper foil stacked in the circuit board can be electrified, and the copper foil can be slowly melted after being conducted and heated and is fully fused with each layer of circuit board;
step five: maintaining pressure, namely maintaining the pressure of the circuit board after the pressing operation is finished for a certain time to reduce deformation, and simultaneously powering off the heating rod (309) in the pressure maintaining process;
step six: lifting, after a certain pressure maintaining time, completing the pressing of the circuit board, discharging the air pressure of the air bag strip I (308) from the positions of the four pressure release valves (7), pulling the connecting piece on the gravity plate (304) back to the original position by using the four air cylinders (301), inflating and expanding the air bag strip III (95), and jacking the pressed circuit board;
step seven: and cooling, after pressure maintaining is finished, loosening the pressure of the second air bag strip (48), contracting the oil cylinder (41), moving the sealing door (42) downwards, opening the feeding port, and taking out the circuit board after pressing by an operator to be placed outdoors for natural cooling.
2. A circuit board press-fitting method according to claim 1, characterized in that: the pressing mechanism (3) comprises an air cylinder (301), an output end of the air cylinder (301) is fixedly connected with a pulling plate (305), the pulling plate (305) is connected with a gravity plate (304) through a bolt, the surface of the gravity plate (304) is connected with a lower fixing plate (303) in a sliding mode, the surface of the lower fixing plate (303) is connected with an upper fixing plate (302) through a bolt, the upper fixing plate (302) is fixedly connected to the machine body (1) through a bolt, and an air bag strip I (308) is fixedly connected between the upper fixing plate (302) and the lower fixing plate (303).
3. A circuit board press-fitting method according to claim 2, characterized in that: the bottom fixedly connected with heat insulating board (307) of arm-tie (305), the bottom fixedly connected with hot plate (306) of heat insulating board (307), the inside of hot plate (306) is provided with a plurality of heating rods (309).
4. A circuit board press-fitting method according to claim 2, characterized in that: the first air bag strips (308) are located in a cavity formed between the lower fixing plate (303) and the machine body (1), the number of the air cylinders (301) is four, the four air cylinders (301) are distributed at four corners of the pulling plate (305) in an array mode, and the air cylinders (301) are fixed in the machine body (1).
5. A circuit board press-fitting method according to claim 1, characterized in that: sealing mechanism (4) is including hydro-cylinder (41), the output shaft fixed surface of hydro-cylinder (41) is connected with connection piece (44), fixedly connected with connector (43) on the output shaft of hydro-cylinder (41), the surperficial sliding connection of connector (43) has sealing door (42), bolted connection is passed through on organism (1) on the surface of hydro-cylinder (41).
6. A circuit board laminating method according to claim 5, wherein: sliding bearings (45) are fixedly connected to two sides of the sealing door (42).
7. A circuit board laminating method according to claim 5, wherein: there is slide (46) through bolted connection on organism (1), the surperficial sliding connection of sealing door (42) is in the inside of slide (46), the inside sliding connection of slide (46) has clamp plate (47), the below of clamp plate (47) is provided with air pocket strip two (48), bolted connection is passed through on the surface of air pocket strip two (48) in the inside of slide (46), fixedly connected with connects air cock (49) on slide (46), connect air cock (49) and air pocket strip two (48) intercommunication each other.
8. A circuit board press-fitting method according to claim 7, wherein: the limiting auxiliary mechanism (9) comprises a connecting block (93), the surface of the connecting block (93) is connected with an upper supporting plate (91) and a lower supporting plate (92) through bolts, an inflating nozzle (96) is fixedly connected to the connecting block (93), an air bag strip III (95) is arranged in a cavity formed by the upper supporting plate (91) and the lower supporting plate (92), the end part of the air bag strip III (95) is fixedly connected to the lower supporting plate (92) through bolts, and a sliding connecting plate (97) is connected to the upper supporting plate (91) in a sliding mode.
9. A circuit board press-fitting method according to claim 8, wherein: the air bag is characterized in that the sliding connecting plate (97) is rotatably connected with a plurality of pushing bearings (94), the sliding connecting plate (97) is located above the air bag strips III (95), the number of the sliding connecting plates (97) is two, and the two sliding connecting plates (97) are symmetrically distributed by taking the center of the machine body (1) as a symmetry axis.
10. A circuit board press-fitting method according to claim 8, wherein: the utility model discloses a portable computer, including organism (1), the inside fixedly connected with support (10) of organism (1), fixedly connected with rolling bearing (11) on support (10), the fixed surface of organism (1) installs observation window (6).
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| CN202110588005.0A CN113473712B (en) | 2021-05-27 | 2021-05-27 | Circuit board pressing method |
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| CN202110588005.0A CN113473712B (en) | 2021-05-27 | 2021-05-27 | Circuit board pressing method |
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| CN113473712B CN113473712B (en) | 2022-06-10 |
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|---|---|
| CN113473712B (en) | 2022-06-10 |
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